This is where the crotch comes in. Guys shouldn't chase a pair of jeans that makes a spectacle out of their junk-- it can be embarrassing at times, if not all the time. But, more importantly, there needs to be room to breathe in those jeans! Bottom line: guys will never impress any ladies while sporting a cardboard corner for a crotch.

Which brings up the next attribute: where are these jeans being worn? Is the guy going to a rodeo, or a rap concert? It's difficult to wear a pair of jeans that's too tight or too baggy without looking like a total buffoon.

The most important aspect of the straight-cut jean relates to the shoe that is being worn underneath it. If the ankle opening is too large, the cuffs of the jeans will drag on the ground and eventually ruin the jeans. With small leg openings, the length of the jean doesn't matter, and a tapered pair of jeans can look very good if done properly. Overall, it's about proportion and, depending on the size of the guy, the legs of the jeans will vary in tightness.